Tina is preparing a presentation on adolescent health in the 21st century. She decides in through a few research studies and collate the findings in her presentation. Which of the following research findings will Tina most likely include in her presentation?

A) More adolescents around the world are dying from acute infections than before.
B) Many adolescent health-compromising behaviors, especially illicit drug use and unprotected sex, are decreasing in frequency.
C) The rate of HIV infection in sub-Saharan countries has decreased marginally in recent years.
D) Fewer adolescents around the world die from malnutrition now than in the past.